Why is symbol autocasting designed as ignore case?

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1 
enum TowValues
  Aa
  AA
end

def foo(v : TowValues)
  puts v
end

foo :AA # => Aa
2

I’m pretty sure this is more so a limitation of enums in general themselves than symbol autocasting. E.g.

enum TowValues
  Aa
  AA
end

TowValues.parse "AA" # => TowValues::Aa

Mainly due to these features trying various combinations when parsing, so AA is the same as Aa, aA, and aa. At the end of the day, it’s probably not really common you have enum members like this anyway.

3

I see.
I found the relevant introduction in the API document.
Thank you!